More disclosures about Canada’s aggressive foreign spying activities are coming, suggests Glenn Greenwald, the American journalist revealing the top-secret documents acquired by Edward Snowden, the former U.S. National Security Agency employee and security contractor.

“There is a huge amount of stuff about Canada in these archives because Canada works so closely with the NSA,” Mr. Greenwald, who lives in Brazil, told The Globe and Mail in an interview on Monday.

While he said that he would not comment on documents not yet made public, he said that Canadians should know that “there is nothing really unique about what Canada’s doing to Brazil – it’s not like Brazil is the only target for Canada.”

...

Mr. Greenwald said that Brazil isn’t the only country that the Olympia program has targeted, according to the documents he has seen. He added that the ramifications spread far beyond Brazil.

“The reason this is so newsworthy is that the U.S. and its allies love to say the only reason they are doing this kind of mass surveillance is they want to stop terrorism and protect national security – but these documents make clear it is industrial and economic competition, it’s about mining resources and minerals,” Mr. Greenwald said.